Wire cutter and stripper



A. BOLLERMAN WIRE GUTTER AND STREIPPER Filed Aug. 18, 1927 v Patented Oct. 2, 1928.

' UNITED STATES ALBERT LBOLLELRMAN, OF NEW YORK, N. Y.

WIRE CUTTER AND STBIPPER.

Application filed August 18, 1927. Serial No. 213,779.

This invention relates to implements for stripping insulation from wires as used m electrical apparatus and cutting the same as ma be desired.

Ii: is one of the objects of this invention to provide a compact, simple, and easily operated implement that can be conveniently carried about and operated in an effective manner.

A further feature is in the pnevision of a tool which is adjustable to suit varying d1- ameters of wire and which may be easily operated by one hand only.

A further object is to provide a tool in which the cutting and scarlfying blades may be removed as occasion requires, as for resharpening, etc.

These and other like objects are accomplished by the novel construction and combination of parts hereinafter descrlbed and shown in the accompanying drawing, form-' ing a material part of this disclosure, and in which I Fig. 1 is a side elevational view of an implement made in accordance with the 1nvention, shown inan open position.

Fig. 2 is a similar view of the same, but in a closed position, parts being broken away in order to disclose the construction.

Fig. 3 is a side elevational view taken in a plane at right angles to Figs. 1 and 2.

Fig. 4 is a plan view of the device looking from its operative end and shown in an open position.

Fig. 5 is a similar view of the same but shown in a closed position. 1

The simplicity of the implement is readily observable from inspection of the drawing, which shows the same to becomprised of two side elements 10 and 11, each of which is curled at their meeting ends and cut across to present two equal hinge-like portions 12 and 13, which are coiled about a tubular rivet 14, being held in operative relation by the offset or flanged ends of the rivet.

Set in one of the elements, as 12, is a sto 15, as the screw shown, the head of whic limits the amount of separation attainable between the members.

The divergent members 10 and 11 are continued to form parallel members 16 and 17 which are inturned as at 18 and 19 to form shelf-like flanges.

It will be noticed that the side members are of substantially rectangular cross section,

with rounded outer edges forming together a convenient grip handle as manipulated by an operator.

Fixed in the member 10 is a screw stud 20 extending inwardly toward the opposite side and adjustably mounted on the stud is a knurled nut 21. On the opposite member 11 is similarly attached a hollow post 22 around which is coiled a compression spring 23, one end abutting the member 11 and the other the nut 21, the normal effect of the spring being to separate the two handle-like elements to the limit of the stop screw 15.

It is to be noted that the hollow part 22 not only receives'the stud 20, but its end makes contact with the adjacent side of the nut 21, thus providing a positive adjustment for the closing movement of the handles.

Fixed on the shelf-like flange 18 is a shear blade 24 held in rigid engagement by screws 25, this'blade laterally overhanging the shelf as shown and having its inner edges provided with beveled V-shaped notches 26 and 27, the latter being the smaller and the inner surface of the blade being level and smooth.

A similar but reversed shear blade==-28 is secured on the opposite flange, and is provided at its front edge with notches 29 and 30, the blade having a level outer surface and being operative with respect to the opposed blade in the manner of a shear. I In operation the elements 10 and 11 are grasped in the hand of the operator, the

'spring 23 actin to spread the members and an insulated wire entered between either of the pair of openings 26 and 27, or 29 and 30, according to its size, whereupon the handle is closed to the limit of adjustment of the nut 21 and the wire drawn longitudinally through the selected openings removing the surrounding insulation.

The nut 21 may be so adjusted that one side of the implement can be used for stripping the insulation and the other smaller opening may be adjusted to separate the wire at any desired point along its length.

As the implement is normally held in an expanded, open position, and conveniently operated in the manner specified, it will be obvious that a desirable tool for the purpose set forth has been disclosed.

Although the foregoing is descriptive of the preferred form of my invention, it will be apparent that minor changes may be made in its structural features without descrew stud fixed in one handle to extend topartiiilg from the spirit and scope of the wards the other, a hollow post fixed in the claim ereto ap ended. other handle to receive said stud, a nut ad- Having thus escribed my invention, what justable on said stud, to limit the closing 15 5 I claim as new and desire to secure by Letmovement of the handles, a compression ters Patent, is spring encircling said stud to normally press A wire cutting and stripping implement said handles apart, and a stop limiting the comprising a pairof handles hinged together opening between said handles. at one end and having inturned flanges at In testimony whereof I have hereunto af- :0 lo the other, cutting and stripping devices atfixed my signature.

tached in opposed relation to said flanges, a ALBERT BOLLERMAN. 

